Temperature
Warm by day, warm at night.
80°Ftypical May high
Typical range
May climate
May in Ascension Island
St. Helena, Ascension and Tristan da Cunha
Warm days and plenty of sun. Humid air and wind on exposed beaches are the main drawbacks.
Good overall
Mid to late
Daytime high
80°F
Lows around 78°F
Rain
A few rainy days
Sun
11.5 h/day
Air feel
Humid
Sea temp
82°F
Great for swimming
Wind
17 mph
Windy
When to visit
Month-by-month fit
Best
Precipitation
Rain is infrequent in May.
10%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
11.4 hMay sunshine
Heat & humidity by month
Warm days, with humid periods.
99%May Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In May, days and nights feel about the same, around 77°.
ComfortableWarmNight hours
Clear sky
Partly cloudy skies this month.
51%May Clear sky
Clear skyCloud
Steady wind
May's steady trade-wind breeze keeps the air from feeling as stagnant.
17 mphMay Windy
Sea temperature
82°FMay sea temp
More detailIncludes daypart comfort
Typical May day
May stays around 79°F through the day and night.
Avg temp Typical range
Morning79°F
Rain7%
Cloud48%
Humid airVery high
Sun intensityLow
Midday79°F
Rain5%
Cloud48%
Humid airVery high
Sun intensityStrong
Late afternoon79°F
Rain5%
Cloud48%
Humid airVery high
Sun intensityStrong
Early evening79°F
Rain4%
Cloud49%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 78 | 76 | 0.1 | 1 | 11.9 | 79 | 79 |
| Feb | 79 | 78 | 0.3 | 2 | 11.9 | 78 | 80 |
| Mar | 81 | 79 | 0.6 | 4 | 11.9 | 77 | 82 |
| Apr | 81 | 79 | 0.7 | 4 | 11.7 | 76 | 82 |
| May | 80 | 78 | 0.3 | 3 | 11.4 | 74 | 82 |
| Jun | 78 | 77 | 0.3 | 3 | 11.2 | 72 | 80 |
| Jul | 76 | 75 | 0.4 | 3 | 11.2 | 72 | 78 |
| Aug | 75 | 74 | 0.2 | 2 | 11.3 | 75 | 77 |
| Sep | 74 | 73 | 0.1 | 0 | 11.3 | 77 | 76 |
| Oct | 74 | 73 | 0.1 | 0 | 11.4 | 78 | 76 |
| Nov | 75 | 74 | 0.0 | 0 | 11.6 | 79 | 76 |
| Dec | 76 | 75 | 0.1 | 0 | 11.8 | 79 | 77 |
Similar climates
Similar
Similar travel stylePort LouisMauritiusSimilar travel styleAntiguaAntigua and BarbudaSimilar travel stylePort DenarauFijiSimilar travel styleNassauBahamas
Want a side-by-side climate view? Compare Ascension Island with Port Louis.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology